At the intersection of light and molecular biology, researchers from DGIST and Stanford have handed science a new kind of key — one that can lock and unlock the chemical conversations between neurons with a precision previously beyond reach. The tool, called LATeNT, uses blue light to temporarily silence specific synaptic connections in the brain, then steps aside and lets nature restore itself within a day. In a field where the gap between understanding a disorder and treating it has long felt unbridgeable, this kind of reversible, targeted control over neural signaling marks a quiet but cons